<html xmlns:th="http://www.thymeleaf.org">
<head>
    <meta charset="UTF-8">
    <title>400</title>
    <link rel="stylesheet" th:href="@{/css/bootstrap.css}">
</head>

<body>
<div class="mx-auto col-8 text-left">
    <div class="mx-auto">
        <img src="/img/400.png" style="height:300px">
    </div>
    <h1 class="text-muted">🥺请求出问题啦，要不再试试?</h1>
    <h4>🏠&nbsp;&nbsp;回到主页:<a href="/index">首页</a></h4>
    <h4>📧&nbsp;&nbsp;发邮件反馈，我们会做的更好:<a href="mailto:"></a></h4>
</div>
</body>
</html>